Meniscus Lenses

issue date：2016-3-31 15:35:44 visit frequency：3003

Meniscus lenses are
convex-concave lenses. They have one outward curved face and one inward-curved
face. If the outward curve is sharper than the inward curve, the lens has a
negative focal length and acts as a reducing lens. The Positive Meniscus Lens can increase the NA of the system
while only adding slightly to the total spherical aberrations. The Negative
Meniscus Lens is used to increase the focal length of another lens while
maintaining the angular resolution of the optical assembly. This lens shape is
best used when one conjugate is relatively far from the lens. As well as, Meniscus lenses are used in applications to reduce beam
distortion. They are used on focusing light beam in telescopes, collimators or
condenser systems, optical transceivers or other applications.

We provide a large variety
kinds of specifications according to clients’ request
or Personalized customization for precision
grade Meniscus lenses with tighter tolerances . Our Meniscus lenses are
available in a range of coating or substrate options. Anti-reflection coatings
range from the Ultraviolet (UV) to the Infrared (IR).

Material

Optical Glass

Focal Length(F)

+/-2mm------+/-3000mm

Diameter(φ)

φ2mm------φ300mm

Radius(R)

2mm------1500mm

Central Thickness(Tc)

0.5mm------50mm

Edge Thickness(Te)

0.5mm-----50mm

Flatness

N=0.5,1,2,3 △N=0.2,0.5,1

Surface Quality

10-5,20-10,40-20,60-40,80-50,120-80

Centration

30’’,1’,2’,3’,5’

Coating

Uncoated, R, R, R Coating, etc

The followings are available in stocks or
customize per request specification: